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2002 -8- 003-2203 <br />• 2.0 SUMMARY OF EARTHWORK CONSTRUCTION <br />Earthworks activities associated with the Phase Na Area included the following: <br />- Underground workings remediation, including excavation, confirmatory <br />drilling, installation of CSB, FSB, CP, CR, and geogrid; <br />- Underdrain construction, including trench excavation; installation of UF, <br />SSF, and geosynthetics, and sump construction; <br />- Leak Detection system construction, including trench excavation; <br />installation of pipe, LDF, and geosynthetics; sump construction; <br />- Site grading, including cut/fill and blasting; <br />- Surface water diversion channel construction, CSP, and headwalls; <br />- Subgrade prepazation; <br />• - SLF installaton, placement and compaction, depth verification testing, and <br />preparation of SLF surface for geomembrane deployment; <br />- OSA composite liner system installation, consisting of geomembrane and <br />SLF; and <br />- DCF placement over geomembrane. <br />Ames generally used the following equipment during constmction: <br />- Caterpillar D6M Low Ground Pressure (LGP) Dozer; <br />- Caterpillar D7H LGP Dozer; <br />- Caterpillaz D9R LGP Dozer; <br />- Caterpillaz D8R Dozer; <br />- Caterpillar D9R Dozer; <br />• - Caterpillaz D l OM Dozer (2); <br />r:~oo~tza3waoo~c~nx~poaoaoo3zzo; onoo ooiao~.m~ Golder ASSOClCieS <br />